Lawmakers in Colorado's House gave an initial OK on Monday to a contentious measure that would allow those in the country illegally to obtain a state-issued form of a driver's license.

Democrats insist the measure is a public safety issue, while Republicans voiced concerns these identification cards could go to individuals with criminal backgrounds.

"This bill addresses a public safety concern that's been lacking for years, and that's making sure all residents using our roads know the rules regardless of their documentation," said Rep. Jovan Melton, an Aurora Democrat, who is championing the effort in the House.

Senate Bill 251 passed through the Senate last month with zero Republican support.